Mean annual rainfall ranges from 2400 mm (Sagarai and Sangara) to 4350 mm (Hargy) with annual rainfall variability larger at Sagarai than the other two sites. Soils range from sandy clay (volcanic ash) to alluvial clay. Validation testsĭata from three sites across Papua New Guinea (PNG) with different climate and soils were used for model testing (Fig. It is difficult to directly relate these outputs to the original study given the genetic advancement since this early date, but responses can be compared. Furthermore, a plant population trial has be reproduced in the same APSIM input file that seeks to mirror the study of Bruere et al (1988).
The only data on material balances of C, N and water were also taken on the same sites in various PhD and MSc studies and so they are ideal for the sensibility test. The validation set covers the main agronomic ranges (ranges in N and environment) and so serves much of the purpose of a sensibility set. However, outputs for N and C cycling, and water balance have been output in the existing validation simulations runs. Michael Webb, CSIRO Land and Water/Sustainable Agriculture Flagship, Townsville, Australia Sensibility/Plausibility testsĪpsim\tests\validation\oilpalm\oilpalmvalidation.apsimĭata is not available for sensibility testing of a wider range of environments.
Nelson, Centre for Tropical Environmental and Sustainability Science, James Cook University, Cairns, Australia Murom Banabas, PNG Oil Palm Research Association, Dami, Papua New Guinea Huth, CSIRO Ecosystem Sciences/Sustainable Agriculture Flagship, Toowoomba, Australia
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